Number vs Quantity
When to use each in English, with meaning, register, and examples.
Number
Top 1,000 (very common)A1noun
Quantity
Top 2,000 (common)A2noun
Most common: Number
| Number | Quantity | |
|---|---|---|
| Pronunciation | 🇬🇧 /["/ˈnʌmbə(r)/"]/🇺🇸 /["/ˈnʌmbər/"]/ | 🇬🇧 //ˈkwɒntɪti//🇺🇸 //ˈkwɑːntɪti// |
| Meaning | A number is a word or symbol that represents a quantity. | How much of something there is. |
| Example | He called the number on the advertisement to get more information. | I bought a large quantity of apples. |
| Register | Neutral | Neutral |
| How common | Top 1,000 (very common) | Top 2,000 (common) |
| CEFR level | A1 | A2 |
| Part of speech | noun | noun |
| Collocations | three-digit, 16-digit, cardinal, calculate, add, add together, in round numbers, number crunching, fax, phone, telephone, call, dial, phone, be busy, be engaged, be unobtainable, exchange numbers, somebody’s name and number, big, high, low, grow in, increase in, decrease in, go up, grow, increase, in number, number of, a decline in numbers, a drop in numbers, a growth in numbers, big, high, low, grow in, increase in, decrease in, go up, grow, increase, in number, number of, a decline in numbers, a drop in numbers, a growth in numbers | large quantity, small quantity, limited quantity, significant quantity, exact quantity |
| Antonyms | none | quality |
| Common mistakes | Confusing 'number' with 'amount' (use 'number' for countable items, 'amount' for uncountable), Saying 'the number of less people' instead of 'fewer people', Using 'numbers' when referring to a singular 'number' | Confusing 'quantity' with 'quality'., Using 'quantity' where 'amount' is more appropriate (e.g., uncountable situations). |
| Usage notes | Use 'number' when referring to a specific quantity of things. It's appropriate in both spoken and written contexts, though in formal settings, specify further (e.g., 'number of participants'). Avoid using it in highly technical mathematical discussions where specific numerical terms are preferred. | Used in contexts relating to amounts, measurements, or counts. Common in both spoken and written English. |
Frequently asked questions: Number vs Quantity
What's the difference between Number and Quantity?
Number: A number is a word or symbol that represents a quantity. Quantity: How much of something there is.
Which is more common: Number and Quantity?
Number is the most common in everyday English.
Are Number and Quantity the same CEFR level?
Number: A1, Quantity: A2 on the CEFR scale.
Can I use Number and Quantity interchangeably?
Not always. Number and Quantity are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.